Mine detail: Anvil-Palms-Keweenaw Group

Previously called 'Anvil MinePalms MineKeweenaw LeaseMassie Lease'

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Location

Lat / long:

46.47361, -90.01927

Resource(M)

Primary:	Iron
Ore:	Hematite, Goethite
Orebody form:	STRATABOUND

Production

Operation type:	Unknown
Deposit type:	Banded Iron-Rich Sedimentary Rocks
Production size:	Medium
Development status:	Past Producer
Production years:	1887 TO 1957; 70 YEARS OF PRODUCTION.
First production started:	1887
Last production ended:	1957

Geology

Host rock:	Ironwood Iron-Formation
Host type:	Iron Formation
Structure:	N-dipping sediments; regional trends are east to west., An E-W linear iron formation going from Gogebic, MI, to Ironwood,MI, and to
Alteration processes:	Gogebic iron range is in the chlorite metamorphic zone in the least metamorphosed area of the upper peninsula.

References

MRDS	W062000
DEP	10082652
Reference	{Deposit:: LAKE SUPERIOR IRON ORE ASSOCIATION, 1952, LAKE SUPERIOR IRON ORES: OHIO, CLEVELAND, P. 53.}{Deposit:: SCHMIDT, 1980: USGS BULLETIN 1460.}{Deposit:: JOHNSON, A.M., AND GROTH, E.H., 1998, INVENTORY OF UNDERGROUND MINES, GOGEBIC COUNTY, P. 1-19, MICHIGAN DEPARTMENT OF NATURAL RESOURCES.}{Production:: LAKE SUPERIOR IRON ORE ASSOCIATION, 1952, P. 62-63.}
Reporter	Sutphin, D.M. (Cannon, W.F.), Mason Jr., G.T., Anderson, Arlene (M. Gere)